CN110185634A - A kind of centrifugal blower and air conditioner - Google Patents

A kind of centrifugal blower and air conditioner Download PDF

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Publication number
CN110185634A
CN110185634A CN201910555010.4A CN201910555010A CN110185634A CN 110185634 A CN110185634 A CN 110185634A CN 201910555010 A CN201910555010 A CN 201910555010A CN 110185634 A CN110185634 A CN 110185634A
Authority
CN
China
Prior art keywords
wind wheel
annular rib
collector
centrifugal
diversion division
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910555010.4A
Other languages
Chinese (zh)
Inventor
李倩文
陈伟
李松
许壮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
Original Assignee
Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aux Air Conditioning Co Ltd, Ningbo Aux Electric Co Ltd filed Critical Aux Air Conditioning Co Ltd
Priority to CN201910555010.4A priority Critical patent/CN110185634A/en
Publication of CN110185634A publication Critical patent/CN110185634A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08Centrifugal pumps
    • F04D17/16Centrifugal pumps for displacing without appreciable compression
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226Fan casings
    • F04D29/4233Fan casings with volutes extending mainly in axial or radially inward direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44Fluid-guiding means, e.g. diffusers
    • F04D29/441Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663Sound attenuation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0018Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022Centrifugal or radial fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24Means for preventing or suppressing noise

Abstract

The invention discloses a kind of centrifugal blower and air conditioners, are related to air-conditioning technical field.The centrifugal blower includes spiral case, collector, centrifugal wind wheel and motor, and centrifugal wind wheel is installed in spiral case, and is connected to motor, and spiral case is connect with collector, and collector is provided with annular rib close to the side of centrifugal wind wheel, and annular rib is for separating vortex.Compared with prior art, centrifugal blower provided by the invention, so can separate the vortex for entering collector using annular rib, to eliminate vortex, reduces noise due to using the collector connecting with spiral case and the annular rib being set on the inside of collector.

Description

A kind of centrifugal blower and air conditioner
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of centrifugal blower and air conditioner.
Background technique
Currently, air-conditioning can generate noise in the process of running, the noise problem of air-conditioning is always the problem in industry, is caused The larger reason of air conditioner noises has very much, such as noise, the air of motor rotation form noise of vortex etc., wherein vortex is made an uproar Sound is affected.Air can generate vortex under the action of centrifugal blower, which can generate loud noise in flow process.
Summary of the invention
Problems solved by the invention is how to eliminate vortex, reduces air conditioner noises.
To solve the above problems, the technical scheme of the present invention is realized as follows:
In a first aspect, the present invention provides a kind of centrifugal blower, including spiral case, collector, centrifugal wind wheel and motor, centrifugation Wind wheel is installed in spiral case, and is connected to motor, and spiral case is connect with collector, and collector is provided with close to the side of centrifugal wind wheel Annular rib, annular rib is for separating vortex.Compared with prior art, centrifugal blower provided by the invention due to use with The collector of spiral case connection and the annular rib being set on the inside of collector, so afflux can will be entered using annular rib The vortex of device is separated, to eliminate vortex, reduces noise.
Further, collector is annular in shape, and collector includes that integrally formed afflux portion and diversion division, diversion division are connected to The inside in afflux portion, annular rib are set in afflux portion, and diversion division is provided with air inlet, and air inlet is connected to spiral case.Afflux Device accelerates air-flow, improves air intake efficiency, outside air is inwardly flowed along the surface in afflux portion for carrying out confluence guiding to air Dynamic, by entering air inlet behind the surface of diversion division, at this point, air rotates to form vortex, vortex is after entering air inlet to outer Diffusion, in the process, annular rib separates vortex, vortex is eliminated, to reduce the noise of air-conditioning.
Further, the extending direction of annular rib and the axial direction of centrifugal wind wheel are identical.Annular rib can be in centrifugation wind Vortex is separated in the axial direction of wheel, to improve partition efficiency, enhancing partition effect.
Further, the quantity of annular rib is multiple, multiple annular rib coaxial spaced settings.Multiple annular ribs are equal Vortex can be separated, further enhance the partition effect to vortex.
Further, the stepped arrangement of multiple annular ribs, on the direction along diversion division to afflux portion, multiple annulars The shortest distance of the end face of rib and centrifugal wind wheel is gradually reduced.Multiple annular ribs can be realized the partition of the classification to vortex, Improve partition effect.
Further, the shortest distance of the end face of diversion division and centrifugal wind wheel is greater than the end face of annular rib and centrifugal wind wheel The shortest distance.Annular rib, closer to the end face of centrifugal wind wheel, is vortexed in the air inlet for entering diversion division compared to diversion division Backward external diffusion, annular rib can carry out backstop and partition to vortex.
Further, the one end of afflux portion far from diversion division is gradually distance from the end face of centrifugal wind wheel, diversion division to the other end The end face of centrifugal wind wheel is moved closer to the other end close to the one end in afflux portion.Outside air flows under the action of centrifugal wind wheel It is dynamic, the end face that is gradually distance from centrifugal wind wheel of the outer surface along afflux portion first, then along the outer surface of diversion division move closer to from The end face of heart wind wheel reduces the flow losses of air to improve intake.
Further, the longitudal section in afflux portion is linear, and the longitudal section of diversion division is arc-shaped, and diversion division is towards close to air inlet The direction protrusion of the axis of mouth.On air inlet direction, what the axis of tangent line and air inlet that diversion division is formed by arc was formed Angle is gradually reduced, until being parallel to the axis of air inlet, to carry out water conservancy diversion to outside air, enhances air inlet effect.
Further, be provided with air duct in spiral case, air duct has an entrance, and collector is connected to inlet, and with centrifugation The setting of wind wheel interval, centrifugal wind wheel are set in air duct.Air inlet is connected to air duct, and outside air is under the action of centrifugal wind wheel Enter air duct by air inlet, in the process, the vortex that the annular rib of collector generates outside air is separated, and reduces wind It makes an uproar.
Second aspect, the present invention provides a kind of air conditioners, and including above-mentioned centrifugal blower, which includes snail Shell, collector, centrifugal wind wheel and motor, centrifugal wind wheel are installed in spiral case, and are connected to motor, and spiral case is connect with collector, Collector is provided with annular rib close to the side of centrifugal wind wheel, and annular rib is for separating vortex.Air conditioner can be in afflux Separate vortex under the action of the annular rib of device, to reduce noise.
Detailed description of the invention
Fig. 1 is the explosive view of centrifugal blower described in first embodiment of the invention;
Fig. 2 is the structural schematic diagram of centrifugal blower described in first embodiment of the invention;
Fig. 3 is the structural schematic diagram of collector in centrifugal blower described in first embodiment of the invention;
Fig. 4 is the partial enlarged view of IV in Fig. 2;
Fig. 5 is the structural schematic diagram of spiral case in centrifugal blower described in first embodiment of the invention;
Fig. 6 is the structural schematic diagram of air conditioner described in second embodiment of the invention.
Description of symbols:
10- air conditioner;100- centrifugal blower;110- spiral case;The air duct 111-;112- entrance;The outlet 113-;114- the first half Shell;The second half-shell of 115-;120- collector;121- afflux portion;122- diversion division;123- air inlet;124- windward side;125- back Wind side;130- centrifugal wind wheel;131- presets end face;140- motor;150- mounting base;160- annular rib;200- shell;210- Air-inlet grille;220- air outlet.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention Specific embodiment be described in detail.
First embodiment
Incorporated by reference to referring to Figures 1 and 2, the embodiment of the invention provides a kind of centrifugal blowers 100, for driving air to flow To form air-flow.It can be separated the vortex for entering collector 120 using annular rib 160, to eliminate vortex, reduction is made an uproar Sound.In the present embodiment, which is applied in air-conditioning, and centrifugal blower 100 can blow out hot wind or cold wind, to adjust Control indoor temperature.
Centrifugal blower 100 includes spiral case 110, collector 120, centrifugal wind wheel 130, motor 140 and mounting base 150.Installation Seat 150 is installed on spiral case 110, and is fixedly connected with motor 140, and mounting base 150 can be supported and limit to motor 140 Position, prevents motor 140 to be subjected to displacement relative to spiral case 110.Air duct 111 is provided in spiral case 110, centrifugal wind wheel 130 is installed on It in air duct 111, and is connect with motor 140, for motor 140 for driving centrifugal wind wheel 130 to rotate, centrifugal wind wheel 130 can will be outer Boundary's air is pumped into air duct 111.Spiral case 110 is connect with collector 120, and collector 120 makes gas for carrying out confluence guiding to air Stream accelerates, and improves air intake efficiency, and collector 120 is provided with annular rib 160, annular rib close to the side of centrifugal wind wheel 130 160 for separating vortex.Outside air enters spiral case 110 by collector 120 under the action of centrifugal wind wheel 130, herein mistake Cheng Zhong, air rotation will form vortex, the vortex entrance collector 120 after under the barrier effect of annular rib 160 by every It is disconnected, to realize the elimination of vortex, thereby reduce air conditioner noises.
Incorporated by reference to referring to Fig. 3 and Fig. 4 (flow direction that the arrow direction in Fig. 4 is air), it should be noted that collection It is annular in shape to flow device 120, collector 120 includes afflux portion 121 and diversion division 122, and afflux portion 121 and diversion division 122 are annular in shape. In the present embodiment, afflux portion 121 and diversion division 122 are integrally formed, to improve bonding strength.Diversion division 122 is connected to afflux portion 121 inside, annular rib 160 are set in afflux portion 121, and diversion division 122 is provided with air inlet 123, air inlet 123 and snail Shell 110 is connected to.Outside air is inwardly flowed along the surface in afflux portion 121, by entering air inlet behind the surface of diversion division 122 123, at this point, air rotates to form vortex, it is vortexed after entering air inlet 123 to external diffusion, in the process, annular rib 160 pairs of vortex are separated, and vortex are eliminated, to reduce the noise of air-conditioning.
In the present embodiment, diversion division 122 and afflux portion 121 are coaxially disposed, and annular rib 160 is coaxially set with afflux portion 121 It sets.Afflux portion 121 is relatively set with windward side 124 and leeward side 125, and leeward side 125 and the end surfaces of centrifugal wind wheel 130 are set It sets, annular rib 160 is set to leeward side 125.Outside air flows on windward side 124 first, then passes through diversion division 122 Into air inlet 123, vortex is formed, is then vortexed on leeward side 125 to external diffusion, until be diffused on annular rib 160, Annular rib 160 separates the vortex, eliminates vortex, reduces noise.In order to make it easy to understand, below, wind will be centrifuged The end face of wheel 130 is expressed as default end face 131.
In the present embodiment, the extending direction of annular rib 160 is identical as the axial direction of centrifugal wind wheel 130, annular 160 energy of rib It is enough that vortex is separated in the axial direction of centrifugal wind wheel 130, to improve partition efficiency, enhancing partition effect.But it simultaneously not only limits In this, in other embodiments, the extending direction of annular rib 160 can also be in a certain angle with the axial direction of centrifugal wind wheel 130 Setting.
It is worth noting that, the quantity of annular rib 160 is multiple, multiple annular 160 coaxial spaced of rib settings.It is multiple Annular rib 160 can separate vortex, further enhance the partition effect to vortex.Specifically, Duo Gehuan The stepped arrangement of shape rib 160, on the direction along diversion division 122 to afflux portion 121, i.e., air inlet 123 from inside to outside Extending direction on, it is multiple annular ribs 160 and the shortest distance of default end face 131 be gradually reduced.Multiple annular 160 energy of rib Enough classifications realized to vortex separate, and improve partition effect.
In the present embodiment, the quantity of annular rib 160 is two, wherein an annular rib 160 is set to leeward side 125 middle part, another annular rib 160 are set to the one end of leeward side 125 far from diversion division 122.It is not limited to this, In other embodiments, the quantity of annular rib 160 can be one, or three, not to the quantity of annular rib 160 Make specific limit.
It should be noted that the shortest distance of diversion division 122 and default end face 131 is greater than annular rib 160 and default end The shortest distance in face 131.For annular rib 160 compared to diversion division 122 closer to default end face 131, vortex is entering diversion division To external diffusion after 122 air inlet 123, annular rib 160 can carry out backstop and partition to vortex.In the present embodiment, water conservancy diversion The shortest distance of portion 122 and default end face 131 is first distance.The quantity of annular rib 160 is two, wherein an annular Rib 160 is set on leeward side 125, and is located at the middle part of leeward side 125, and the annular rib 160 and default end face 131 are most Short distance is second distance;Another annular rib 160 is set on leeward side 125, and is located at leeward side 125 far from diversion division The shortest distance of 122 one end, the annular rib 160 and default end face 131 is third distance.First distance be greater than second away from From second distance is greater than third distance, to realize the classification partition of vortex, improves partition effect.
In the present embodiment, afflux portion 121 is obliquely installed, the one end of afflux portion 121 far from diversion division 122 to the other end gradually Far from default end face 131, diversion division 122 moves closer to default end face 131 to the other end close to the one end in afflux portion 121.It is extraneous Air flows under the action of centrifugal wind wheel 130, and the outer surface along afflux portion 121 is gradually distance from default end face 131 first, then Moving closer to default end face 131 along the outer surface of diversion division 122 reduces the flow losses of air to improve intake.
Specifically, the longitudal section in afflux portion 121 is linear, and the longitudal section of diversion division 122 is arc-shaped, 122 court of diversion division Close to the direction protrusion of the axis of air inlet 123.On air inlet direction, diversion division 122 is formed by the tangent line and air inlet of arc The angle that the axis of mouth 123 is formed is gradually reduced, until it is parallel to the axis of air inlet 123, to carry out water conservancy diversion to outside air, Enhance air inlet effect.
Referring to figure 5., it is notable that air duct 111 is provided in spiral case 110, air duct 111 has an entrance 112, collection Stream device 120 is connected at entrance 112, and is spaced and is arranged with centrifugal wind wheel 130, and centrifugal wind wheel 130 is set in air duct 111.Into Air port 123 is connected to air duct 111, and outside air enters air duct 111 by air inlet 123 under the action of centrifugal wind wheel 130, During this, the vortex that the annular rib 160 of collector 120 generates outside air is separated, and drops low wind noise.In addition, air duct 111 Far from entrance 112 one end have outlet 113, into air duct 111 outside air under the action of centrifugal wind wheel 130 from outlet 113 outputs.
Please continue to refer to Fig. 1, in the present embodiment, spiral case 110 includes first half-shell 114 and the second half-shell 115.First half-shell 114 are detachably connected with the second half-shell 115, and first half-shell 114 and the combination of the second half-shell 115 form air duct 111, collector 120 It is connected in first half-shell 114, mounting base 150 is connected in the second half-shell 115.Specifically, first half-shell 114 and collector 120 are integrally formed, and to improve bonding strength, and can prevent from generating gap between first half-shell 114 and collector 120, from And enhance air inlet effect.
Centrifugal blower 100 described in the embodiment of the present invention, centrifugal wind wheel 130 are installed in spiral case 110, and with motor 140 Connection, spiral case 110 are connect with collector 120, and collector 120 is provided with annular rib 160 close to the side of centrifugal wind wheel 130, Annular rib 160 is for separating vortex.Compared with prior art, centrifugal blower 100 provided by the invention is due to using and snail The collector 120 that shell 110 connects and the annular rib 160 being set on the inside of collector 120, so annular rib can be utilized 160 separate the vortex for entering collector 120, to eliminate vortex, reduce noise.
Second embodiment
Fig. 6 is please referred to, the present invention provides a kind of air conditioners 10, for regulating and controlling indoor air temperature.The air conditioner 10 include from Heart blower 100 and shell 200.Wherein, the basic structure and principle of centrifugal blower 100 and the technical effect of generation and first are implemented Example is identical, and to briefly describe, the present embodiment part does not refer to place, can refer to corresponding contents in first embodiment.
In the present embodiment, air conditioner 10 is cabinet air-conditioner, and centrifugal blower 100 is vertically arranged in shell 200, shell 200 It is relatively set with air-inlet grille 210 and air outlet 220, centrifugal blower 100 can be taken out outside air by air-inlet grille 210 Enter, then by air outlet 220 by after heat exchange hot wind or cold wind send out.
The beneficial effect of air conditioner 10 and the beneficial effect of first embodiment described in the embodiment of the present invention are identical, herein not It repeats again.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute Subject to the range of restriction.

Claims (10)

1. a kind of centrifugal blower, which is characterized in that including spiral case (110), collector (120), centrifugal wind wheel (130) and motor (140), the centrifugal wind wheel (130) is installed in the spiral case (110), and connect with the motor (140), the spiral case (110) it is connect with the collector (120), the collector (120) is provided with ring close to the side of the centrifugal wind wheel (130) Shape rib (160), the annular rib (160) is for separating vortex.
2. centrifugal blower according to claim 1, which is characterized in that the collector (120) annularly, the collector It (120) include integrally formed afflux portion (121) and diversion division (122), the diversion division (122) is connected to the afflux portion (121) inside, it is described annular rib (160) be set on the afflux portion (121), the diversion division (122) be provided with into Air port (123), the air inlet (123) are connected to the spiral case (110).
3. centrifugal blower according to claim 2, which is characterized in that the extending direction of the annular rib (160) and institute The axial direction for stating centrifugal wind wheel (130) is identical.
4. centrifugal blower according to claim 2, which is characterized in that it is described annular rib (160) quantity be it is multiple, it is more A annular rib (160) coaxial spaced setting.
5. centrifugal blower according to claim 4, which is characterized in that multiple described annular rib (160) stepped rows Cloth, along the direction along the diversion division (122) to the afflux portion (121), multiple annular ribs (160) and it is described from The shortest distance of the end face of heart wind wheel (130) is gradually reduced.
6. centrifugal blower according to claim 2, which is characterized in that the diversion division (122) and the centrifugal wind wheel (130) shortest distance of end face is greater than the most short distance of the end face of the annular rib (160) and the centrifugal wind wheel (130) From.
7. centrifugal blower according to claim 2, which is characterized in that the afflux portion (121) is far from the diversion division (122) one end is gradually distance from the end face of the centrifugal wind wheel (130) to the other end, and the diversion division (122) is close to the collection The one end in stream portion (121) moves closer to the end face of the centrifugal wind wheel (130) to the other end.
8. centrifugal blower according to claim 7, which is characterized in that the longitudal section of the afflux portion (121) is linear, The longitudal section of the diversion division (122) is arc-shaped, the diversion division (122) towards close to the air inlet (123) axis side To protrusion.
9. centrifugal blower according to claim 1, which is characterized in that air duct (111) are provided in the spiral case (110), The air duct (111) has an entrance (112), and the collector (120) is connected at the entrance (112), and with it is described from The setting of heart wind wheel (130) interval, the centrifugal wind wheel (130) are set in the air duct (111).
10. a kind of air conditioner, which is characterized in that including centrifugal blower as described in any one of claim 1 to 9.
CN201910555010.4A 2019-06-25 2019-06-25 A kind of centrifugal blower and air conditioner Pending CN110185634A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910555010.4A CN110185634A (en) 2019-06-25 2019-06-25 A kind of centrifugal blower and air conditioner

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Application Number Priority Date Filing Date Title
CN201910555010.4A CN110185634A (en) 2019-06-25 2019-06-25 A kind of centrifugal blower and air conditioner

Publications (1)

Publication Number Publication Date
CN110185634A true CN110185634A (en) 2019-08-30

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5352089A (en) * 1992-02-19 1994-10-04 Nippondenso Co., Ltd. Multi-blades fan device
JP2004339997A (en) * 2003-05-14 2004-12-02 Calsonic Kansei Corp Blower
CN201368069Y (en) * 2009-03-12 2009-12-23 上虞专用风机有限公司 Enclosure of centrifugal fan
CN201448291U (en) * 2009-06-12 2010-05-05 美的集团有限公司 Fan volute structure of range hood
CN203867986U (en) * 2014-04-25 2014-10-08 广东美的制冷设备有限公司 Shell assembly used for centrifugal fan, centrifugal fan and refrigeration equipment
CN108050102A (en) * 2018-01-29 2018-05-18 美的集团股份有限公司 Impeller, fan assembly and electric appliance
CN210141211U (en) * 2019-06-25 2020-03-13 宁波奥克斯电气股份有限公司 Centrifugal fan and air conditioner

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5352089A (en) * 1992-02-19 1994-10-04 Nippondenso Co., Ltd. Multi-blades fan device
JP2004339997A (en) * 2003-05-14 2004-12-02 Calsonic Kansei Corp Blower
CN201368069Y (en) * 2009-03-12 2009-12-23 上虞专用风机有限公司 Enclosure of centrifugal fan
CN201448291U (en) * 2009-06-12 2010-05-05 美的集团有限公司 Fan volute structure of range hood
CN203867986U (en) * 2014-04-25 2014-10-08 广东美的制冷设备有限公司 Shell assembly used for centrifugal fan, centrifugal fan and refrigeration equipment
CN108050102A (en) * 2018-01-29 2018-05-18 美的集团股份有限公司 Impeller, fan assembly and electric appliance
CN210141211U (en) * 2019-06-25 2020-03-13 宁波奥克斯电气股份有限公司 Centrifugal fan and air conditioner

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